It is often assumed that an irrigation system already installed on a new landscape is sufficient. The landscape contractor or homeowner automatically guesses that the installation was done correctly and adequately. Frequently, this is not the case. Larger trees in the six to nine-foot range need special attention-such as regular watering for two to three months after they have been planted. The extra watering from a pre-established irrigation system isn?EUR??,,????'???t always enough either, which may mean a Gator bag or a water tank truck are required, especially in areas lacking precipitation. I like to make the analogy of trees being similar to grown men, shrubs and turf are more like a child, while annuals and one gallon material are babies. The men need a steak, the children a sandwich and the babies, well, they need to be spoon fed. Trees need regular care and watering. Take, for instance, a sprinkler set to water every third day with a rotor head on a 30-minute cycle. If a tree is in a cyclical zone with a rotor spraying at 180 degrees, then the tree will effectively receive about four minutes of watering. Not much, is it? Even if a tree is the focal point of a spray zone for 10 or 15 minutes, receiving 100 percent of the sprinkler?EUR??,,????'???s attention, it?EUR??,,????'???s better, but still not enough for a large tree. Back to the tree-to-men analogy-Would a grown man be satisfied with a snack every three days? Of course not. My recommendation is to use a gator bag in addition to the irrigation system. If the gator bag is filled with 20 gallons of water emitted over a three-day period, that tree is getting its steak dinner. And, if a little snack seems in order, add some osmocote fertilizer to the mix.